30 years experience in design and production of valves guarantee high standard products. ZWICK valves are produced state-of-the-art. The triple offset butterfly valves are specially designed for critical services where they are used as shut off and control valves. The in-house design enables offering customized solutions for individual applications like the global Industries of Oil and Gas, Chemical, Petrochemical, Energy, Offshore and Steel. TRI-CON valves incorporate a unique third offset design with a true cone-in-cone seating and a reliable zero-leakage performance and allow bi-directional tightness.